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ABR thresholds to tonebursts gated with blackman and linear windows in adults wth high-frequency sensorineural hearing loss / Suzanne C. Purdy in Ear and hearing, Vol.23, n° 4 (Août 2002)
Titre : ABR thresholds to tonebursts gated with blackman and linear windows in adults wth high-frequency sensorineural hearing loss Type de document : Article Auteurs : Suzanne C. Purdy ; Paul J. Abbas Année de publication : 2002 Langues : Anglais (eng) Descripteurs : HE Vinci
Potentiel évoqué auditif (PEA) ; Surdité neurosensorielle (SNHL)
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in Ear and hearing > Vol.23, n° 4 (Août 2002)[article]Acoustic Change Complex and Visually Reinforced Infant Speech Discrimination Measures of Vowel Contrast Detection / Barbara K. Cone in Ear and hearing, Vol.43, n°2 (Mars-avril 2022)
Titre : Acoustic Change Complex and Visually Reinforced Infant Speech Discrimination Measures of Vowel Contrast Detection Type de document : Article Auteurs : Barbara K. Cone ; Spencer Smith ; Smith Cheek Année de publication : 2022 Article en page(s) : p. 531-544 Langues : Anglais (eng) Descripteurs : HE Vinci
Discrimination visuelle ; Nourrisson ; PHONETIQUE ACOUSTIQUE ; Potentiel évoqué auditif (PEA)
Résumé : Objectives: To measure the effect of stimulus rate and vowel change direction on the acoustic change complex (ACC) latencies and amplitudes and compare ACC metrics to behavioral measures of vowel contrast detection for infants tested under the age of 1 year. We tested the hypothesis that the direction of spectral energy shift from a vowel change would result in differences in the ACC, owing to the sensitivity of cortical neurons to the direction of frequency change. We evaluated the effect of the stimulus rate (1/s versus 2/s) on the infants' ACC. We evaluated the ACC amplitude ratio's sensitivity (proportion of ACCs present for each change trial) and compared it to perceptual responses obtained using a visually reinforced infant speech discrimination paradigm (VRISD). This report provides normative data from infants for the ACC toward the ultimate goal of developing a clinically useful index of neural capacity for vowel discrimination.
Design: Twenty-nine infants, nine females, 4.0 to 11.8 months of age, participated. All participants were born at full term and passed their newborn hearing screens. None had risk factors for hearing or neurologic impairment. Cortical auditory evoked potentials were obtained in response to synthesized vowel tokens /a/, /i/, /o/, and /u/ presented at a rate of 1- or 2/s in an oddball stimulus paradigm with a 25% probability of the deviant stimulus. All combinations of vowel tokens were tested at the two rates. The ACC was obtained in response to the deviant stimulus. The infants were also tested for vowel contrast detection using a VRISD paradigm with the same combinations of vowel tokens used for the ACC. The mean age at the time of the ACC test was 5.4 months, while the mean age at the behavioral test was 6.8 months.
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in Ear and hearing > Vol.43, n°2 (Mars-avril 2022) . - p. 531-544[article]Acoustic Change Complexes Recorded in Adult Cochlear Implant Listeners / Lendra M. Friesen in Ear and hearing, Vol.27, n° 6 (Décembre 2006)
Titre : Acoustic Change Complexes Recorded in Adult Cochlear Implant Listeners Type de document : Article Auteurs : Lendra M. Friesen ; Kelly L. Tremblay Année de publication : 2006 Langues : Anglais (eng) Descripteurs : Autres descripteurs
Changement acoustique complexe (ACC) ; Traitement auditif central (cap)
Adulte implanté ; Implants cochléaires ; Potentiel évoqué auditif (PEA)
Mots-clés : Nucleus CI24 Disponible en ligne : Oui En ligne : https://login.ezproxy.vinci.be/login?url=http://ovidsp.ovid.com/ovidweb.cgi?T=JS [...] Permalink :
in Ear and hearing > Vol.27, n° 6 (Décembre 2006)[article]Activity-dependent developmental plasticity of the auditory brain stem in children who use cochlear implants / Karen A. Gordon in Ear and hearing, Vol.24, n° 6 (Décembre 2003)
Titre : Activity-dependent developmental plasticity of the auditory brain stem in children who use cochlear implants Type de document : Article Auteurs : Karen A. Gordon ; Blake C. Papsin ; Robert V. Harrison Année de publication : 2003 Langues : Anglais (eng) Descripteurs : Autres descripteurs
Enfant implanté ; Implants cochléaires ; Potentiel évoqué auditif (PEA)
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in Ear and hearing > Vol.24, n° 6 (Décembre 2003)[article]Age-Related Changes in Temporal Resolution Revisited: Electrophysiological and Behavioral Findings From Cochlear Implant Users / Bruna S. Mussoi in Ear and hearing, Vol. 40, n°6 (novembre-décembre 2019)
Titre : Age-Related Changes in Temporal Resolution Revisited: Electrophysiological and Behavioral Findings From Cochlear Implant Users Type de document : Article Auteurs : Bruna S. Mussoi ; Carolyn J. Brown Année de publication : 2019 Article en page(s) : p. 1328-1344 Langues : Anglais (eng) Descripteurs : HE Vinci
Implants cochléaires ; Perception de la parole ; Potentiel évoqué auditif (PEA) ; Sujet âgé
Résumé : bjectives: The mechanisms underlying age-related changes in speech perception are still unclear, most likely multifactorial and often can be difficult to parse out from the effects of hearing loss. Age-related changes in temporal resolution (i.e., the ability to track rapid changes in sounds) have long been associated with speech perception declines exhibited by many older individuals. The goals of this study were as follows: (1) to assess age-related changes in temporal resolution in cochlear implant (CI) users, and (2) to examine the impact of changes in temporal resolution and cognition on the perception of speech in noise. In this population, it is possible to bypass the cochlea and stimulate the auditory nerve directly in a noninvasive way. Additionally, CI technology allows for manipulation of the temporal properties of a signal without changing its spectrum.
Design: Twenty postlingually deafened Nucleus CI users took part in this study. They were divided into groups of younger (18 to 40 years) and older (68 to 82 years) participants. A cross-sectional study design was used. The speech processor was bypassed and a mid-array electrode was used for stimulation. We compared peripheral and central physiologic measures of temporal resolution with perceptual measures obtained using similar stimuli. Peripherally, temporal resolution was assessed with measures of the rate of recovery of the electrically evoked compound action potential (ECAP), evoked using a single pulse and a pulse train as maskers. The acoustic change complex (ACC) to gaps in pulse trains was used to assess temporal resolution more centrally. Psychophysical gap detection thresholds were also obtained. Cognitive assessment included two tests of processing speed (Symbol Search and Coding) and one test of working memory (Digit Span Test). Speech perception was tested in the presence of background noise (QuickSIN test). A correlational design was used to explore the relationship between temporal resolution, cognition, and speech perception.
Results: The only metric that showed significant age effects in temporal processing was the ECAP recovery function recorded using pulse train maskers. Younger participants were found to have faster rates of neural recovery following presentation of pulse trains than older participants. Age was not found to have a significant effect on speech perception. When results from both groups were combined, digit span was the only measure significantly correlated with speech perception performance.
Conclusions: In this sample of CI users, few effects of advancing age on temporal resolution were evident. While this finding would be consistent with a general lack of aging effects on temporal resolution, it is also possible that aging effects are influenced by processing peripheral to the auditory nerve, which is bypassed by the CI. However, it is known that cross-fiber neural synchrony is improved with electrical (as opposed to acoustic) stimulation. This change in neural synchrony may, in turn, make temporal cues more robust/perceptible to all CI users. Future studies involving larger sample sizes should be conducted to confirm these findings. Results of this study also add to the growing body of literature that suggests that working memory is important for the perception of degraded speech.
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in Ear and hearing > Vol. 40, n°6 (novembre-décembre 2019) . - p. 1328-1344[article]An improved method of reducing stimulus artifact in the electrically evoked whole-nerve potential / Charles A. Miller in Ear and hearing, Vol.21, n° 4 (Août 2000)PermalinkAn observational study to assess the influence of karate training on auditory evoked potential / Puneet Bhattacharya in Science et motricité, 121 (Juin 2023)PermalinkApport de l'électrophysiologie à la prise de décision dans le dilemme thérapeutique associé aux Affections appartenant au Spectre de la Neuropathie Auditive / Paul Deltenre ; Karianne De Vlieger ; Anne-Laure Mansbach in Cahiers de l'audition, Vol. 34, n°3 (Mai/juin 2021)PermalinkL'apport des examens techniques en clinique neuropsychologique / Jean-Michel GuéritPermalinkArtifactual responses when recording auditory steady-state responses / Susan A. Small in Ear and hearing, Vol.25, n° 6 (Décembre 2004)PermalinkAuditory Brainstem Response Detection Using Machine Learning: A Comparison With Statistical Detection Methods / Richard M. McKearney in Ear and hearing, Vol. 43, n°3 (Mai-juin 2022)PermalinkAuditory brainstem response testing using intranasal dexmedetomidine sedation in children: a pilot study / Joanna Godbehere ; Samuel Harper ; Teresa Loxey ; Christine Kirton ; Rohit Verma ; Simon Carr in International Journal of Audiology IJA, Vol. 60, n°7 (Juillet 2021)PermalinkAuditory evoked potentials / Robert F. Burkard (2007)PermalinkAuditory Evoked Potentials in Communication Disorders: An Overview of Past, Present, and Future / Akshay R. Maggu in Seminars in hearing, Vol.43, n°3 (August 2022)PermalinkAuditory Evoked Responses in Older Adults With Normal Hearing, Untreated, and Treated Age-Related Hearing Loss / Katrina S. McClannahan in Ear and hearing, Vol. 40, n°5 (Septembre octobre 2019)Permalink